Linux 记录服务器负载、内存、cpu状态的PHP脚本

<?phpwhile(1){exec('top -b -n 1 -d 3',$out);$Cpu = explode('  ', $out[2]);$Mem = explode('  ', $out[3]);$Swap = explode('  ', $out[4]);//var_dump($Cpu,$Mem,$Swap);$cpu = str_replace(array('%us,',' '),'',$Cpu[1]);$mem = str_replace(array('k used,',' '),'',$Mem[2]);$swap = str_replace(array('k cached',' '),'',$Swap[5]);echo date('md H').''.$cpu.''.intval($mem/1024).''.intval($swap/1024).chr(10);sleep(10);}